Chris
Chris

Reputation: 530

Nesting an array of structure into another structure

I am trying to create a structure that includes an array of structures.

my code this far (cut to only two glyphs)

#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>

typedef struct glyph_t{
        uint16_t width;
        uint16_t length;
        uint16_t *data;
} glyph_t;

typedef struct font_t{
    uint8_t height;
    glyph_t glyphs[2];
} font_t;


// '9' character
const uint16_t glyph_0_data[] = {
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0xc318,0xef7b,0x79ce,0x7def,0xbef7,0xfbde,0x34a5,0x2842,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x2842,0x7def,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xf39c,0x2000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x6529,0xbef7,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x9294,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x18c6,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xe739,0x0000,0x0000,
    0x0000,0xc739,0xffff,0xffff,0xffff,0xffff,0x34a5,0x0421,0x6108,0x8a52,0x5def,0xffff,0xffff,0xffff,0x96b5,0x0000,0x0000,
    0x0000,0x718c,0xffff,0xffff,0xffff,0x79ce,0x0000,0x0000,0x0000,0x0000,0x0842,0xffff,0xffff,0xffff,0xdfff,0x8210,0x0000,
    0x0000,0xbad6,0xffff,0xffff,0xffff,0x4d6b,0x0000,0x0000,0x0000,0x0000,0x0000,0x59ce,0xffff,0xffff,0xffff,0xaa52,0x0000,
    0x2000,0xdfff,0xffff,0xffff,0xffff,0x6529,0x0000,0x0000,0x0000,0x0000,0x0000,0xef7b,0xffff,0xffff,0xffff,0x518c,0x0000,
    0x2421,0xffff,0xffff,0xffff,0xffff,0x2000,0x0000,0x0000,0x0000,0x0000,0x0000,0x694a,0xffff,0xffff,0xffff,0xb6b5,0x0000,
    0xa631,0xffff,0xffff,0xffff,0x9ef7,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x8631,0xffff,0xffff,0xffff,0xdbde,0x0000,
    0xe739,0xffff,0xffff,0xffff,0x5def,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xe318,0xffff,0xffff,0xffff,0xbef7,0x0000,
    0xe739,0xffff,0xffff,0xffff,0x9ef7,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xc318,0xffff,0xffff,0xffff,0xffff,0x4108,
    0x6529,0xffff,0xffff,0xffff,0xffff,0x2000,0x0000,0x0000,0x0000,0x0000,0x0000,0x8210,0xffff,0xffff,0xffff,0xffff,0xa210,
    0x8210,0xffff,0xffff,0xffff,0xffff,0x6529,0x0000,0x0000,0x0000,0x0000,0x0000,0x4108,0xffff,0xffff,0xffff,0xffff,0xe318,
    0x0000,0x3ce7,0xffff,0xffff,0xffff,0xcf7b,0x0000,0x0000,0x0000,0x0000,0x0000,0x6108,0xffff,0xffff,0xffff,0xffff,0x0421,
    0x0000,0x34a5,0xffff,0xffff,0xffff,0x5def,0xc318,0x0000,0x0000,0x0000,0x0000,0x8210,0xffff,0xffff,0xffff,0xffff,0xc318,
    0x0000,0x494a,0xffff,0xffff,0xffff,0xffff,0xdbde,0x694a,0x6108,0x6108,0x0842,0x75ad,0xffff,0xffff,0xffff,0xffff,0x6108,
    0x0000,0x0000,0x59ce,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x0000,
    0x0000,0x0000,0x8631,0x9ef7,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x9ef7,0x0000,
    0x0000,0x0000,0x0000,0x0842,0x5def,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x59ce,0x0000,
    0x0000,0x0000,0x0000,0x0000,0xa210,0x1084,0x9ad6,0x9ef7,0x9ef7,0xbad6,0x9294,0x55ad,0xffff,0xffff,0xffff,0x34a5,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x75ad,0xffff,0xffff,0xffff,0xef7b,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x1ce7,0xffff,0xffff,0xffff,0x0842,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x8631,0xffff,0xffff,0xffff,0x9ef7,0x2000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x718c,0xffff,0xffff,0xffff,0x75ad,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xc318,0xbef7,0xffff,0xffff,0xffff,0x694a,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x75ad,0xffff,0xffff,0xffff,0x9ad6,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x718c,0xffff,0xffff,0xffff,0xffff,0xcb5a,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x2421,0xd7bd,0xffff,0xffff,0xffff,0xffff,0xf7bd,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x6108,0x8631,0x4d6b,0xb6b5,0xffff,0xffff,0xffff,0xffff,0xffff,0x3ce7,0xe318,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x38c6,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x5def,0x8631,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x55ad,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x9ad6,0x2421,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x718c,0xffff,0xffff,0xffff,0xffff,0x7def,0xcf7b,0x2000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x8e73,0x5def,0x79ce,0xf39c,0xaa52,0x4108,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000 }; //glyph_0_data

glyph_t glyph_0 = {
    .width = 17,
    .length = 782,
    .data = glyph_0_data
};


// 'A' character
const uint16_t glyph_1_data[] = {
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xeb5a,0xffff,0xffff,0xffff,0xffff,0x3084,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xb6b5,0xffff,0xffff,0xffff,0xffff,0xdbde,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x8210,0xdfff,0xffff,0xffff,0xffff,0xffff,0xffff,0x6529,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xeb5a,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x1084,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x96b5,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xbad6,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x4108,0xbef7,0xffff,0xffff,0x79ce,0x9ad6,0xffff,0xffff,0xffff,0x2421,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xaa52,0xffff,0xffff,0xffff,0x1084,0x1084,0xffff,0xffff,0xffff,0xae73,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x14a5,0xffff,0xffff,0xffff,0x8631,0x8631,0xffff,0xffff,0xffff,0x18c6,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x7def,0xffff,0xffff,0x1ce7,0x0000,0x0000,0x1ce7,0xffff,0xffff,0xffff,0x8210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xc739,0xffff,0xffff,0xffff,0xb294,0x0000,0x0000,0xd39c,0xffff,0xffff,0xffff,0xcb5a,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x3084,0xffff,0xffff,0xffff,0x694a,0x0000,0x0000,0x8a52,0xffff,0xffff,0xffff,0x34a5,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x79ce,0xffff,0xffff,0xdfff,0x6108,0x0000,0x0000,0x6108,0xdfff,0xffff,0xffff,0x7def,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0xa210,0xffff,0xffff,0xffff,0xf7bd,0x0000,0x0000,0x0000,0x0000,0x18c6,0xffff,0xffff,0xffff,0xa631,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0xeb5a,0xffff,0xffff,0xffff,0xcf7b,0x0000,0x0000,0x0000,0x0000,0x1084,0xffff,0xffff,0xffff,0xef7b,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x14a5,0xffff,0xffff,0xffff,0xc739,0x0000,0x0000,0x0000,0x0000,0x0842,0xffff,0xffff,0xffff,0x18c6,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x3ce7,0xffff,0xffff,0x9ef7,0x2000,0x0000,0x0000,0x0000,0x0000,0x4108,0xdfff,0xffff,0xffff,0xdfff,0x6108,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x4529,0xffff,0xffff,0xffff,0xb6b5,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x18c6,0xffff,0xffff,0xffff,0x494a,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x6d6b,0xffff,0xffff,0xffff,0xae73,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x1084,0xffff,0xffff,0xffff,0x718c,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x96b5,0xffff,0xffff,0xffff,0xa631,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0842,0xffff,0xffff,0xffff,0x9ad6,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x9ef7,0xffff,0xffff,0x9ef7,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x4108,0xdfff,0xffff,0xffff,0xffff,0x8210,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x8631,0xffff,0xffff,0xffff,0xb6b5,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x18c6,0xffff,0xffff,0xffff,0x8a52,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x8e73,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x9294,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x96b5,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x79ce,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x7def,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0x6108,0x0000,0x0000,
    0x0000,0x0000,0x6529,0xffff,0xffff,0xffff,0x55ad,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x75ad,0xffff,0xffff,0xffff,0x494a,0x0000,0x0000,
    0x0000,0x0000,0x4d6b,0xffff,0xffff,0xffff,0xcf7b,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xef7b,0xffff,0xffff,0xffff,0x3084,0x0000,0x0000,
    0x0000,0x0000,0x34a5,0xffff,0xffff,0xffff,0x494a,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x694a,0xffff,0xffff,0xffff,0xf7bd,0x0000,0x0000,
    0x0000,0x0000,0xfbde,0xffff,0xffff,0xffff,0xa210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xe318,0xffff,0xffff,0xffff,0xbef7,0x2000,0x0000,
    0x0000,0xc318,0xffff,0xffff,0xffff,0x3ce7,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x7def,0xffff,0xffff,0xffff,0xa631,0x0000,
    0x0000,0x694a,0xffff,0xffff,0xffff,0xd7bd,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x18c6,0xffff,0xffff,0xffff,0x6d6b,0x0000,
    0x0000,0x3084,0xffff,0xffff,0xffff,0x718c,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xb294,0xffff,0xffff,0xffff,0x34a5,0x0000,
    0x0000,0xd7bd,0xffff,0xffff,0xffff,0x2c63,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x4d6b,0xffff,0xffff,0xffff,0xfbde,0x0000,
    0x0000,0x7def,0xffff,0xffff,0xffff,0xc739,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xc739,0xffff,0xffff,0xffff,0xffff,0xa210,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
    0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000
}; //glyph_1_data

glyph_t glyph_1 = {
    .width = 24,
    .length = 1104,
    .data = glyph_1_data
};

font_t font = {
    .height = 48, 
    .glyphs[] = {glyph_0, glyph_1}
};

int main()
{
    printf("\n");
    printf("%d\n", font.height);
    printf("%d\n", font.glyph[0].width);
    printf("%d\n",font.glyph[0].data[106]);
    printf("%d\n", font.glyph[1].width);
    printf("%d\n",font.glyph[1].data[106]);
}

When compiling, I got the following error:

font2.c:133:2: error: array index in initializer exceeds array bounds
  .glyphs[2] = {glyph_0, glyph_1}
  ^
font2.c:133:2: error: (near initialization for ‘font.glyphs’)
font2.c:133:2: error: initializer element is not constant
font2.c:133:2: error: (near initialization for ‘font.glyphs[0].width’)
font2.c:133:2: error: initializer element is not constant
font2.c:133:2: error: (near initialization for ‘font.glyphs[0].length’)

I also tried:

font_t font;
font.height = 48;
font.glyphs[0] = glyph_0;
font.glyphs[1] = glyph_1;

When compiling I get this following error:

 gcc -o test font2.c 
font2.c:132:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘.’ token
 font.height = 48;
     ^
font2.c:133:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘.’ token
 font.glyphs[0] = glyph_0;
     ^
font2.c:134:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘.’ token
 font.glyphs[1] = glyph_1;

I also tried various combinations of "glyphs[2]" and "glyphs[]" with no success. I have no idea what either error means. Any help would be appreciated.

Upvotes: 1

Views: 67

Answers (2)

John Bollinger
John Bollinger

Reputation: 180201

Your other answer explains the syntax and semantic problems in your approach; please do not accept this one over that. I simply want to add that you can perform the initialization at file scope, as long as you are willing to use literals. That seems reasonable to me, as I don't see why you want to duplicate your glyph data as your original code attempts to do. It might look like this:

font_t font = {
    .height = 48, 
    .glyphs = {
        { .width = 17, .length = 782,  .data = glyph_0_data },
        { .width = 24, .length = 1104, .data = glyph_1_data }
    }
};

Upvotes: 1

dbush
dbush

Reputation: 223852

You're using invalid syntax when initializing font:

font_t font = {
    .height = 48, 
    .glyphs[] = {glyph_0, glyph_1}
    //     ^^ ---- here
};

The field glyphs is already known to be an array, so no need for the subscript operator.

However, even if you did this there would still be an error because font is defined a file scope and the values you're using for initialization contain other variables names instead of constants.

The syntax of assigning each field is valid, but only within a function. An assignment is an executable statement, and those can't exist outside of a function.

Define the variable at file scope without initializing, then set the field in main:

font_t font;

int main()
{
    font.height = 48;
    font.glyphs[0] = glyph_0;
    font.glyphs[1] = glyph_1;

    printf("\n");
    ...

Upvotes: 1

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